Improvement in thrashii



2* Sheets--Sheet i.

D AViD C. BAUGHMAN.

Improvement in Thrash'ing Machines.

Patented J une 6,1871.

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2Sheets--Sheet2.

DAVID C. 'BAUGHMAN.

Improvement in Thrashing Machines.

Patented June 6,1871.

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All PHGTQ-LITHOGHAFII/ 06 AU. (0556517519 PROCESS DAVID C. BAUGHMAN, OF TIFFIN, OHIO.

lMPROVEMENT 3N THRASHlNG-MACHiNE-ZS.

Specification 'formin g part of Letters Patent No. 115,680, dated June (i, 1871.

To all whom it may concern:

Be it known that I, DAVID C. Bnoenrmn, of Tiffin, in the county of Seneca and in the State of Ohio, have invented-certain new'and useful Improvements in Threshing-Machine; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon making a part of this specification.

The nature of my invention consists in the construction-"and arrangement of a thrashingmachine, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in whicht Figure 1 is a side elevation of my machine, showing the elevator side.- Fig. 2 is aside elovation of the opposite side of my machine. Fig. 3 is a longitudinalvertical section of the same. Fig. 4 is a plan view of the lower or front end of the toothed bars with the crankshaft. Fig. 5 is a plan view of the conveyor. Fig. 6 is a rear view, showing the mechanism for operating the;upper or rear ends of the toothed bars. Fig. 7 is a plan view of the feed-table and spiked concave. plan view of the sieve and toothed tailingboard. a Fig. 9 is a rear view of the same; and Fig. 10 shows an eccentric for operating the toothed bars. r v

- A represents the frame of mymachine, which is supported upon wheels so that the machine can readily be moved from place to place, where needed. At the front end of the frame A is the feed -table B, over which the unthrashed grain passes in between the spiked or toothed cylinder 0 and the spiked or toothed concave D. The feed-table is held at its front or outer edge by means of pins to a, which are inserted in grooves on arms A A, extending forward from the frame A, and at its inner or rear edge the feed-table is held by a hook, I), catching in one of the hangers d, which support the concave D. The hangers d d are curved, and hinged or pivoted at their rear ends, and at their front ends are attached arms which are inserted in cars projecting downward from a crank-shaft, f; or the front ends Fig. 8 is a.

of the hangers themselves may be inserted in said ears. On one end of the crank-shaft f is a lever, h, which projects downward on the side of the'machine, and can be moved backward or forward to raise or lower the front endsof the hangers, said lever being held at any desired point in a toothed bar or rack-bar, e. The inner sides of the hangers d d are grooved longitudinally, and in the same, at the rear ends of the hangers, is inserted a con 'vex plate, is, and then the toothed or spiked concave D, which is thus placed directly under the cylinder (3. It will be seen that, by means of the lever It and crank-shaftflthis concave may be brought closer to or further from the cylinder, as may be necessary or desired. The grain and straw are thrown forward onto the toothed bars E E, the straw being carried toward the rear by the said toothed bars, while the grain and chaff or other small stuff fall down through the cleated bars G G onto the shaker or grain -reoeiver H. The toothed bars E E are attached, attheir front ends, to a shaft, m, having alternate cranks, as'shown in Fig. 4. To each alternate crank are attached two or more of the toothed bars E, the object of which is obvious. The bends or crooks of the crank-shaft or cannot be made close enough together to fill up the space between each with one bar, and hence the utility of attaching two or more bars to each crook or bend. Between'the toothed bars E E are placed the cleated bars G G, for the construction of which I have made a separate application for patent. At the upper or rear end of the frame A are two shafts, n a, attached to the ends of bars 11, which are pivoted in their centers, and operated, by means that will be hereinafter described, so as to rock on their pivots, thus alternately raising and lowering each shaft. One of these rock-shafts, n, is attached, by means of vibrating rods or bars 1', to one set of toothed bars, E, and the other rock-shaft is in the same manner attached to the other set of toothed bars, so as to raise one set and drop the other set of toothed bars at one and the same time, and shove one set forward and draw the other set backward at the same. time. Thus, while one set is rising above the cleated bars the other set is dropping below the upper surface of them. The set raised above the cleated bars, as soon as it attains itshighest point, begins to move away from the cylinder, thus carrying the straw toward the stacker, while at the same time the other set is carried back entirely below the upper surface of the cleated bars. The under sides of the toothed bars E are notched or provided with small teeth, so that during their downward and forward motions they will facilitate the passage of the grain on the bottom or shaker H, and prevent the chaff or other stufi which has passed down with the grain from clogging. From the bottom H the grain falls onto the sieve I, and from thence into the conveyer J, and carried out at the side of the machine. The chaff is blown over the sieve I by'means of the fan K, which is situated under the concave D, and in rear of said fan. Between it and the sieve are two wind-boards, L L, one above and below. These wind-boards are adjustable, so that the direction of the blast can be regulated. The tailings fall through a rake, s, hinged or pivoted at the rear end of the sieve I, and onto a toothed tailing-board,

- M, which carries the tailings into the. elevator N so as to be carried up and dropped into the machine again between the cylinder and concave. F represents a hinged door arranged in rear of the tailing-board, whereby the tailin gs are directed onto said board.

The various parts of my machine are operated in the following manner: On the side of the frame A, at the front end, is a shaft, 0, turned by any suitable or convenient power in any desired manner. Upon the rear end of this shaft is a bevel-wheel, c, which gears with and imparts rotary motion to a pinion attached on one end of the crank-shaft m. On the other end of this crank-shaft is a cog-wheel, P, which gears with pinions w and y upon the shafts for the cylinder 0 and fan K, respectively, thus imparting the necessary rotary motion to said cylinder and fan. Attached to a wrist-pin on wheel I? is a rod or pitman, R, which connects with an arm, S, hinged or pivoted upon the outside of the frame, bymeans of which said arm obtains a vibrating motion. From this vibrating arm a rod, 2, connects with an arm, 1., extending upward from the center of one of the bars 1), in the ends of which the rockshafts n n. are placed, as above described, said shafts by this means obtaining their rocking motion. From both of the bars 12 1) arms a to extend upward, and from these arms rods b I) connect with a cross-bar, d, to which movable bottom H is attached, whereby said bottom also obtains its necessary reciprocatingmotion. Another rod, 0, connects the vibrating arm S with the sieve orriddle I, and also with the toothed board M in the tailing-box, by means of suitable connecting-rods, whereby motion is imparted to both. A belt, f, shown in Fig. 1, conveys motion from the fan-shaft to the conveyer. Upon the opposite end of the lower belt-shaft for the elevator N is a pinion, h, which gears with a cog-wheel, k, upon a shaft, 112, having its bearings on the beams supporting the whole machine; and upon this shaft are suitable pulleys n, from which motion may be communicated to the stacker for running the same. In place of the crank-shaft m for operating the toothed bars E, I may use, as shown in Fig. 10, a straight shaft with a series of eccentrics, 00, which may be placed as close together as desired, thereby bringing the toothed bars closer together than could be done with cranks. I

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The rock-shaft n a, in combination with the toothed bars E E, substantially in the manner and for the purposes herein set forth.

2. The movable bottom H, shafts n n, and vibrating arm S, constructed and arranged substantially as and for the purposes herein set forth. I

3; The vibrating arm S with its connections R, z, and e, arranged to operate substantially as and for the purposes herein set forth. 4. The tailing-board M, provided with teeth on its upper side, and arranged in relation to the elevator N, substantially as herein set forth. I

5. The arrangement of the belt f connecting the fan-shaft with the conveyer, the pinion h on the conveyer-shaft, cog-wheel k, shaft m,,and pulleys n a, said pulleys to be connected with the stacker, all substantially as described.

6. The toothed bars E E, when operated by means of eccentrics w .r set at varying angles gm 2% straight shaft, substantially as herein set ort April, 1872.

Q Witnesses:

A. H. BYERs, H. E. THOMPSON.

13.0.BAUG11MAN, 

